In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.
Q: Sentence: Tanning salons claim to use a “safe” form of uv (ultraviolet) light, with a longer wavelength than that in sunlight. Question: Tanning salons claim to use a “safe” form of what light, with a longer wavelength than that in sunlight?
A: 
uv (ultraviolet)